Anyone else see `java.lang.NoClassDefFoundError: Could not initialize class org.jetbrains.kotlin.com...

# gradle

[robfletcher]

Anyone else see java.lang.NoClassDefFoundError: Could not initialize class org.jetbrains.kotlin.com.intellij.pom.java.LanguageLevel trying to run a Gradle build with Kotlin scripts under buildSrc using the new Zulu JDK 16?

[christophsturm]

i see it with adoptopenjdk-16

[christophsturm]

Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make protected void java.util.ResourceBundle.setParent(java.util.ResourceBundle) accessible: module java.base does not "opens java.util" to unnamed module @324e4822

[robfletcher]

Just having it installed seems to be enough. Even if I set JAVA_HOME to a different version

[christophsturm]

maybe it destroys something when the exception occurs in jdk 16

[robfletcher]

Tried the Strikt CI build on GitHub too and I see the same thing there

[christophsturm]

oh i think its the kotlin compiler daemon

[christophsturm]

after a killall java it works again with < jdk 16

[robfletcher]

huh, seems to work with gradle --no-daemon too

[robfletcher]

even with JAVA_HOME set to 16

[christophsturm]

not for me…

[christophsturm]

maybe you have a kotlin compiler daemon running with a differnt jdk?

[christophsturm]

i think the kotlin daemon is independent from --no-daemon

[christophsturm]

in idea everything works fine even with jdk 16

[robfletcher]

Not sure I even have that enabled, killall java only seemed to kill IntelliJ for me

[christophsturm]

for me it kills everything except intellij

[robfletcher]

however, since running killall java the problem seems to have gone away even if I don’t use --no-daemon

[christophsturm]

even with jdk 16?

[robfletcher]

Yep. Wonder why it doesn’t work on GitHub actions’ container

[robfletcher]

I get another error but much further along

[robfletcher]

and even if I rm -fr buildSrc/build it does’t recur

[tapchicoma]

Kotlin will support JDK 16 in 1.5.0 release

[christophsturm]

will kotlin 1.5.0 release with idea 2021.1?

[tapchicoma]

I think no, IDEA will be released earlier. But I may be mistaken